info:eu-repo/semantics/article
New brachyrostran remains (Theropoda, Abelisauridae) from La Invernada fossil site (Bajo de la Carpa Formation, Upper Cretaceous), northern Patagonia, Argentina
Fecha
2018-03Registro en:
Méndez, Ariel Hernán; Filippi, Leonardo Sebastián; Gianechini, Federico Abel; Juárez Valieri, Rubén D.; New brachyrostran remains (Theropoda, Abelisauridae) from La Invernada fossil site (Bajo de la Carpa Formation, Upper Cretaceous), northern Patagonia, Argentina; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 83; 3-2018; 120-126
0195-6671
CONICET Digital
CONICET
Autor
Méndez, Ariel Hernán
Filippi, Leonardo Sebastián
Gianechini, Federico Abel
Juárez Valieri, Rubén D.
Resumen
Several remains of an abelisaurid theropod including a nearly complete sacral complex articulated with both ilia, the distal boot of the pubes, the furcula, teeth, and fragments of transverse processes of caudal vertebrae was discovered in the La Invernada fossil site, northern Patagonia from the Bajo de la Carpa Formation (Santonian). The sacrum exhibit features typical of abelisauroids as narrowing of the middle sacral centra, fused neural spines forming a continuous sheet and ventral bow of the sacrum, in lateral view. The furcula represents de first mention of this bone for a South American abelisaurid. The morphology observed in the transverse processes with distal end projected forward and sagittal ridge on the ventral surface allows its taxonomic assignment to the clade Brachyrostra.